Find answers to your most challenging questions with the help of IDNLearn.com's experts. Receive prompt and accurate responses to your questions from our community of knowledgeable professionals ready to assist you at any time.
Sagot :
To determine the equation of a circle with a given center and a point on the circle, we need to identify three parameters in the standard form of the circle's equation:
[tex]\[ (x - h)^2 + (y - k)^2 = r^2 \][/tex]
where [tex]\((h, k)\)[/tex] is the center of the circle and [tex]\(r\)[/tex] is the radius.
Step-by-step solution:
1. Identify the center of the circle:
The center of the circle is given as [tex]\((h, k) = (5, -4)\)[/tex].
2. Identify a point on the circle:
The point on the circle is [tex]\((x_1, y_1) = (-3, 2)\)[/tex].
3. Calculate the radius:
The radius [tex]\(r\)[/tex] can be found using the distance formula between the center [tex]\((5, -4)\)[/tex] and the given point [tex]\((-3, 2)\)[/tex]:
[tex]\[ r = \sqrt{(x_1 - h)^2 + (y_1 - k)^2} \][/tex]
Plugging in the values:
[tex]\[ r = \sqrt{((-3 - 5)^2 + (2 + 4)^2)} = \sqrt{((-8)^2 + (6)^2)} = \sqrt{64 + 36} = \sqrt{100} = 10 \][/tex]
4. Form the equation of the circle:
Using the standard form [tex]\((x - h)^2 + (y - k)^2 = r^2\)[/tex], and substituting [tex]\(h = 5\)[/tex], [tex]\(k = -4\)[/tex], and [tex]\(r = 10\)[/tex], the equation becomes:
[tex]\[ (x - 5)^2 + (y + 4)^2 = 10^2 = 100 \][/tex]
5. Fit the equation into the required format:
The standard form given in the question is [tex]\((x + \square)^2 + (y + \square)^2 = \square\)[/tex].
To match this, consider:
[tex]\[ (x - 5)^2 = (x + (-5))^2 \][/tex]
and
[tex]\[ (y + 4)^2 = (y + (-4))^2. \][/tex]
6. Final values for the equation:
Substitute the appropriate values into the given format:
[tex]\[ (x + (-5))^2 + (y + (-4))^2 = 100 \][/tex]
Thus, the correct values to fill in the blanks are:
[tex]\((x + \boxed{-5})^2 + (y + \boxed{-4})^2 = \boxed{100}\)[/tex]
[tex]\[ (x - h)^2 + (y - k)^2 = r^2 \][/tex]
where [tex]\((h, k)\)[/tex] is the center of the circle and [tex]\(r\)[/tex] is the radius.
Step-by-step solution:
1. Identify the center of the circle:
The center of the circle is given as [tex]\((h, k) = (5, -4)\)[/tex].
2. Identify a point on the circle:
The point on the circle is [tex]\((x_1, y_1) = (-3, 2)\)[/tex].
3. Calculate the radius:
The radius [tex]\(r\)[/tex] can be found using the distance formula between the center [tex]\((5, -4)\)[/tex] and the given point [tex]\((-3, 2)\)[/tex]:
[tex]\[ r = \sqrt{(x_1 - h)^2 + (y_1 - k)^2} \][/tex]
Plugging in the values:
[tex]\[ r = \sqrt{((-3 - 5)^2 + (2 + 4)^2)} = \sqrt{((-8)^2 + (6)^2)} = \sqrt{64 + 36} = \sqrt{100} = 10 \][/tex]
4. Form the equation of the circle:
Using the standard form [tex]\((x - h)^2 + (y - k)^2 = r^2\)[/tex], and substituting [tex]\(h = 5\)[/tex], [tex]\(k = -4\)[/tex], and [tex]\(r = 10\)[/tex], the equation becomes:
[tex]\[ (x - 5)^2 + (y + 4)^2 = 10^2 = 100 \][/tex]
5. Fit the equation into the required format:
The standard form given in the question is [tex]\((x + \square)^2 + (y + \square)^2 = \square\)[/tex].
To match this, consider:
[tex]\[ (x - 5)^2 = (x + (-5))^2 \][/tex]
and
[tex]\[ (y + 4)^2 = (y + (-4))^2. \][/tex]
6. Final values for the equation:
Substitute the appropriate values into the given format:
[tex]\[ (x + (-5))^2 + (y + (-4))^2 = 100 \][/tex]
Thus, the correct values to fill in the blanks are:
[tex]\((x + \boxed{-5})^2 + (y + \boxed{-4})^2 = \boxed{100}\)[/tex]
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. For dependable answers, trust IDNLearn.com. Thank you for visiting, and we look forward to helping you again soon.